Enhanced Properties of Stone Coal-Based Composite Phase Change Materials for Thermal Energy Storage
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS(2024)
摘要
Phase change materials (PCMs) can be incorporated with low-cost minerals to synthesize composites for thermal energy storage in building applications. Stone coal (SC) after vanadium extraction treatment shows potential for secondary utilization in composite preparation. We prepared SC-based composite PCMs with SC as a matrix, stearic acid (SA) as a PCM, and expanded graphite (EG) as an additive. The combined roasting and acid leaching treatment of raw SC was conducted to understand the effect of vanadium extraction on promoting loading capacity. Results showed that the combined treatment of roasting at 900°C and leaching increased the SC loading of the composite by 6.2
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关键词
thermal energy storage,phase change material,stone coal,vanadium extraction,secondary utilization
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